All / Baum & Mercer All 18k Solid Gold Baum & Mercer Chronograph Mechanical Movement - Automatic Mechanical Movement - Manual BM-001: C. 1950's BAUM & MERCIER 18K Gold Chronograph w/ Landeron 48 Movement $4,850.00 Add To Cart BM-002: C. 1950's BAUM & MERCIER 18K Gold Automatic w/ Bidynator Movement $4,650.00 Add To Cart